English is becoming increasingly important in Vietnam as a global language. Many Eastern Asian countries' school reform agendas emphasize ICT. The Vietnamese Ministry of Education declared 2008-2009 the Year of ICT for Education. E-assessment is important in language teaching when combined with ICT and evaluations. Quizizz is an online test platform that helps students assess their progress.

The COVID-19 pandemic and related lockdown and physical distance measures not only disrupted education and training but also sparked innovation in distance learning. Distance learning has been shown to be effective in managing kids' social isolation as well as ensuring continued learning when schools close. This study sought to examine the effectiveness of using Quizizz application to deliver online assessments on English multiple-choice tests in summative exams in the teaching context of EFL.